Suspension and Chassis Questions about your suspension? Need chassis advice?

Drivers side front clunk

Old Jul 24, 2017 | 11:54 PM
  #1  
tom976's Avatar
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Drivers side front clunk

Greetings All;
This is my first post, I have the pleasure to own a 1986 Iroc-Z with a little over 16k miles on it. (couple of years now)

Everything is pretty much original on it. (I did rebuild the rear disc brakes (e-brake wasnt working)) and replaced all the brake lines with ac delco ones.

I am trying to keep the car original as possible. It does have a few mods that people would have done in the day like a compucam (crain) 2000 cam.
In any case, I have all the original parts for the girl too. (this was all done before I owned it, but the original owner did provide boxes with all the original stuff)

Anyway, recently I have a driver side clunk... going a railroad crossing is one of those cringe moments no matter how slow I go. Sounds like its on the drivers side. Now I do get that after 31 years that most if not all the suspension rubber is hard as a rock. I am looking for some advice on tracing down the suspension issue. Not exactly sure where to start but I certainly dont mind turning a wrench.

Thoughts?

Thanks
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Old Jul 25, 2017 | 01:11 AM
  #2  
1992 Trans Am's Avatar
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From: Los Angeles, CA
Car: 1992 Pontiac Trans Am Convertible
Engine: 5.0L 305ci TPI
Transmission: 5 Speed Manual, World Class T-5
Axle/Gears: 3.08
Re: Drivers side front clunk

Inspect your sway bar bushings and end links and inspect your strut tower mounts. There's a bearing and rubber in the strut tower mount that could've gone bad. These are the two places I'd inspect first.
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Old Jul 25, 2017 | 08:05 AM
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Re: Drivers side front clunk

Looks like I got something to do this weekend...


I appreciate the reply.


Now only if the car were easier to jack up, lol
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Old Jul 30, 2017 | 12:53 PM
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1992 Trans Am's Avatar
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From: Los Angeles, CA
Car: 1992 Pontiac Trans Am Convertible
Engine: 5.0L 305ci TPI
Transmission: 5 Speed Manual, World Class T-5
Axle/Gears: 3.08
Re: Drivers side front clunk

Did you figure out the issue?

Originally Posted by tom976
Looks like I got something to do this weekend...


I appreciate the reply.


Now only if the car were easier to jack up, lol
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Old Aug 21, 2017 | 07:51 AM
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From: Michigan
Car: 1989 IROC-Z
Engine: 305ci TPI
Re: Drivers side front clunk

I have a similar clunk coming from my passenger side. It sounds like it's the top strut mount but everything there is tight (to my knowledge). I'm pretty sure I gave a bad sway bar link also (sounds like washers or pocket change jingling). If you guys know about either of these sounds/locations please let me know.
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Old Aug 21, 2017 | 09:28 AM
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From: Moorpark, CA
Car: '91 GTA, '92 T/A Convertible
Engine: GTA: 350 w/Vortec heads, T/A: 305
Transmission: Pro-built 700R4
Axle/Gears: GTA: 3.27, T/A: 2.73
Re: Drivers side front clunk

Originally Posted by Ragin
I'm pretty sure I gave a bad sway bar link also (sounds like washers or pocket change jingling).
Sounds exactly like sway bar end link bushings are worn out.
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